Road-grader.



0. E. MOATS 6L 0. E. THALEG.

ROAD GRADER.

APPLlcATloN HLED Nov. 24, 1913.

Patented Sept. 5, 1916.

3 SHEETS-SHEET l.

w w N o. E. Moms @L 0. E. THALEG.

ROAD GRADER.

APPLICATION HLED'Nov. 24, 1913.

@ff/zwi 0.21222/ f Wadi@ Patented Sept. 5, 1916.

3 SHEETS-SHEET 2 M //fiZ/d/y Wiw' owa

0. E. MOATS & 0. E. THALEG.

ROAD GRADER.

APPLICATION man Nov. 24, 1913.

Pandsepn 5,1916.

3 SHEETS-SHEET 3.

OR'IUS E. IVIOATS AND OSCAR E. THALEG, OF CHICAGO, ILLINOIS.

ROAD-Giannina.

Specification of Letters Patent.

Application mea November 24, 191e. serial No. 802,809.

To all whom t may concern:

Be it known that we, ORTUs E. MoA'ls and OSCAR E. THALEG, citizens ofthe United States, and residents of the city of Chicago, county of Cook,and State of Illinois, have invented certain new and useful'Improvementsin Road-Graders, of which the following is a specification.

Our invention relates to improvements in road graders, and has for itsobject the provision of an improved machine of this character which iscapable of a large variety of adjustments and hence capable of use for alarge variety of operations, such as ditching, grading, scraping,leveling and the like.

A further object of the invention is to provide an improved machine ofthe character mentioned which is so constructed and arranged as to notbe likely to become clogged with sand or grit and thus renderedinoperative, or operative only with great difliculty.

With these objects in view, the invention consists in the combinationsand arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which, Y

Figure 1 is a top plan view of amachine embodying our invention, Fig. 2,asimilar view of the machine but showing the scraper blades adjusted todifferent positions, Fig. 3, an enlarged section taken on line afi-w ofFig. 2, Fig. 4,.a side view of the machine shown with one of the rearwheels removed, Fig. 5, a section taken on line y-g/ of Fig. 4, Fig. 6,an enlarged section taken on line z--a of Fig. 5, and Fig. 7, a sectiontaken on substantially line w-fw of Fig. 4.

The preferred form of construction as illustrated in the drawingscomprises a frame 1 of any usual or desired construction and supportedon lforward wheels 2 and rearward wheels 3 mounted and arranged in anyusual or desired `manner. The specific form of the frame and themounting of the wheels constitute no part of our present4 invention, andwe make no claim thereto, any efficient' form of frame and wheelconstruction being capable of eiicient operation in conjunction with ourinvention.

The main frame Iof the machine is provided with. four transverselyalining stand.1

ards or posts 4 arranged about the middle of the machine and square bars5 are mount- Patented Sept. 5, 1916.

ed to reciprocate vertically in standards 4 and provided with rack bars6, as shown in Fig. 5. Each of the rack bars 6 meshes with a pinion 7 onthe end of a shaft 8 mounted on the main frame of the machine andprovided at its rear end with a worm wheel 9 meshing with a worm 10 on ashaft 11 provided with a hand wheel 12 arranged in operative relationwith a platform 13 at the rear of the machine and upon which theoperator stands in operating the machine. By this arrangement, it willbe observed that by manipulating hand wheels 12, each of the bars 5 maybe adjusted vertically independently of each other, and that said barswill Vbe automatically locked in adjusted position by means of theinterlocking action of the worin with the worm wheel 9. A crane arm 14is swiveled to the upper end of each of the bars 5 so as to turn freelythereon and the two inner crane arms14 are provided with perforatedlocking arms 14 arranged to coperate with perforatedlock# ing plates 4provided on the upper ends of the corresponding standards 4 to permit oflocking said crane arms in adjusted positions by inserting a pin or boltthrough said perforations. Each of the crane arms 14 is provided with adepending swinging hanger 15 which is mounted at its upper end in thecorresponding crane arm by means of a ball 'and socket joint 16 so as tobe free to swing freely in any direction. At its lower end each of thehangers 15 on corresponding sides of the machine is connected by meansof a universal joint 17 with the top of a blade supporting frame 18, sothat two hangers support each of said frames, as shown. An annular wormwheel 19 is rotatably mounted on the bottom of each of the blade frames18 and meshes with a correspond-ing worm 20 which is carried by shaft 21mounted on the bottom of the corresponding frame 18. Each of the shafts21 is connected by means of a universal joint 22 with the lower end of ashaft 23, said shaft 23 telescoping a hollow shaft 23 and carrying a pin24 slidably engaging a slot 25 in shaft 23, as shown. Shaft 23 ismounted on the main frame of the machine in a bearing 26 which is freeto swing in any direction, said shaft being provided with a hand wheel27 in operative relation with platform 13 to facilitate manipulationthere? of. Each of the worm wheels 19 carries a scraper blade 28supported thereon by means of hangers 29. By this arrangement, it willbe observed, that each of the scraper blades 28 may be rotated on thecorresponding frame 18 so as to adjust the angular position' of each ofsaid blades relatively to the mainframe of the machine, that suchadjustments are possible in any position to which the frames 18, may beadjusted in frame 1 and that the interlocking action of the worms andworm wheels serves to lock said blades automatically in said adjustedpositions.

An upwardly and outwardly extending link 30 is connected with the top ofeach of the frames 18 by means of a universally swinging joint 31 and atits other end by means of a ball and socket joint 32 with the under sideof a worm wheel 33 arranged at the adjacent side of frame 1. Each of theworm wheels 33 is mounted upon a hollow sleeve 34 which is arranged inthe lower portion of the corresponding standard 4 and is provided with acentral opening adapted to permit the free passage of the correspondingbar 5. Each of the worm wheels 33 meshes with a worm 35 having auniversal joint connection 36 with a shaft 37 provided with a hand wheel38 adjacent platform 13. By this arrangement, it will be observed thateach of the worm wheels 33 maybe rotated independently of each other andthat when so rotated will serve to adjust the frames 18 laterally withrespect to frame 1 and that such adjustments may be made notwithstandingthe fact that frame 18 may also be adjusted both vertically,longitudinally and laterally in frame 1.

A rocker beam 39 is pivoted centrally at the forward portion o-f frame 1and coperates with a bar 39 pivoted centrally, arranged parallel withsaid beam and connected thereto at its ends by means of links 40 pivotedto each, as shown. Each of the links 40 is provided with a transverseframe 41 in which is mounted a transverse screw 42 having an exposedsquared end 42 for engagement by a wrench. By this arrangement, it willbe observed that frame 41 and screws 42 will always remain 'intransverse relation to frame 1 notwithstanding the angular adjustmentsof rocker beam 39. Each of the screws 42 is provided with a threadedblock 43 traveling thereon in frame 41 and each of the blocks 43 isprovided with a link or yoke 44 pivoted at 45 thereto to swinghorizontally. Each of the links 44 is pivoted at 46 t'o the forward endof the corresponding frame 18. By this arrangement, it will beobservedthat when rocker beam 39 is rocked, one of the frames 18 will bedrawn forwardly, and the other rearwardly with respect to frame 1, andthat the forward ends of said frame may be adjusted laterally, by meansof threaded shafts 42, thus providing for different longitudinal andlateral positions of frame 18.

Booker beam 39 carries a segmental crown or face gear 47 which mesheswith a selffshown, and by means of which rocker beam fr 39 may beadjusted to and locked in any desired angular' position and frames 18correspondingly adjusted.

By the construction set forth, it will be observed, that the scraperblades 28 may be adjusted into a large variety of different positions soas to adapt them for performing a large variety of different operationsunder a large variety of different circumstances. Owing to the fact thatall of the adjustments employed are ,swinging adjustments, thesupporting bearings of the parts are comparatively small, and theturning leverage eXerted thereon during adjustment, is com parativelygreat Aso that it is impossible for sand or grit in the bearings tomaterially interfere with the adjustments. rl`he specific arrangementand form of parts disclosed will be found to be a simple and eilicientone for the purpose.

Whilewe have illustrated and described the preferred form ofconstruction for carrying our invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention. Ve, therefore, do not wish to be limited to the precisedetails of construction set forth, but desire to avail ourselves of suchvariation and modifications as come within the scope of the appendedclaims.

Having described our invention what we claim as new and desire to secureby Letters Patent is:

1. A. grader comprising a mainframe; a crane arm mounted to swing onsaid main frame on a substantially vertical axis; a depending hangermounted on said crane arm to swingrfreely in any direction; a bladeframe pivotally connected with the lower end of said hanger; a blade onsaid blade frame; and means for adjusting said blade frame,substantially as described.

2. A grader comprising a main frame; a crane arm mounted to swing onsaid main frame on a substantially vertical axis; a dcpending hangermounted on said crane army to swing freely in any direction; a bladeframe pivotally connected with the lower end of said hanger; a bladerotatably mountedv on said blade frame; and means for adjusting saidblade frame, substantially as described. 4

3. A grader comprising a main frame; a vertically adjustable crane armmounted to swing on said main frame on a substantially vertical axis; adepending hanger mounted on said crane arm to swing freely in anydirection; a blade frame pivotally connected with the lower end of saidhanger; a blade on said blade frame; and means for adjusting said bladeframe,y subst-antially as described.

4. A grader comprising a main frame; a vertically adjustable crane armmounted to swing on said main frame on a substantially vertical axis; adepending hanger mounted on said crane arm to swing freely in anydirection; a blade frame pivotally connected with the lower end of saidhanger; a blade rotatably mounted on said blade frame; and means foradjusting said blade frame, substantially as described.

5. A grader comprising a main frame; a,

crane arm mounted to swing on said main frame on a substantiallyvertical axis; a depending hanger mounted on said crane arm to swingfreely in any direction; a blade frame pivotally connected with thelower end of said hanger; a blade rotatably mounted on said blade frame;and an extensible swinging shaft mounted on said main frame and saidblade frame and connected to rotate said blade, substantially asdescribed.

6. A grader comprising a main frame; a vertically adjustable crane armmounted to swing on said main frameo on a substantially vertical axis; adepending hanger mounted on said crane arm to swing freely in anydirection; a blade frame pivotally connected with the lower end of saidhanger; a blade rotatably mounted on said blade frame; and an extensibleswinging shaft mounted on said main frame and said blade.

frame and connected to rotate said blade, substantially as described.

7. A grader comprising a main frame; a crane arm mounted to swing onsaid main frame on a substantially vertical axis; a depending hangermounted on said crane arm to swing freely in any direction; a bladefra-me pivotally connected with the lower end of said hanger; a bladerotatably mounted on said blade frame; an extensible swinging shaftmounted on said main frame and said blade frame and connected to rotatesaid blade; a link pivotally connected with said blade frame; and meanson said main frame for operating said link to adjust said blade frame,substantially as described.

8. A grader comprising a main frame; a vertically adjustable crane armmounted to swing on said main frame on a substantially vertical axis; adepending hanger mounted on said crane arm to swing freely in anydirection; a blade frame pivotally connected with the lower end of saidhanger; a blade rotatably mounted on said blade frame; an extensibleSwinging shaft mounted on said main frame and said blade frame andconnected to rotate said blade; a link pivotally connected with saidblade frame; and means on said main-frame for operating said link toadjust said blade frame, substantially as described.

9. A grader comprising a frame; a support mounted on said frame to swingon a substantially verticalaxis; a depending hanger mounted to swingfreely on said support; a blade frame on said hanger; and a bladerotatably mounted on said frame, substantially as described.

10. A grader comprising a frame; a support mounted on said frame toswing on a substantially vertical axis; a depending hanger mounted toswing freely on said support; a blade frame on said hanger; a bladerotatably mounted on said frame; an oscillatory member mounted on saidframe on a substantially Vertical axis; and a link connecting saidoscillatory member with said blade frame, substantially-as described.

11. A grader comprising a frame; a vertically adjustable support mountedon said frame to swing on a substantially vertical axis; a dependinghanger mounted to swing freely on said support; a blade frame on saidhanger; and a blade rotatably mounted on said frame, substantially asdescribed.

12. A grader comprising a frame; avertically adjustable support mountedon said frame to swing on a substantially vertical axis; a dependinghanger mounted to swing freely on said support; a blade frame on saidhanger; a blade rotatably mounted on said frame; an oscillatory membermounted, on said frame on a substantially vertical axis; and a linkconnecting said oscillatory member with said blade frame, substantiallyas described.

13. A grader comprising a frame; a pair of coperating supports mountedon said frame to 'swing on substantially vertical axes; a dependinghanger mounted to swing freely on each of said supports; a blade frameon said hangers; and a blade rotatably mounted on said blade frame,substantially as described.

14:. A grader comprising a frame; a pair of coperating supports mountedon said frame to swing on substantially vertical axes; a dependinghanger mounted to swing freely on each of said supports; a blade frameon said hangers; a blade rotatably mounted on said blade frame; anoscillatory member lmounted on said frame on a substantially verticalaxis; and a link connecting said oscillatory member with said bladeframe, substantially as described.

15. A grader comprising a frame; a pair of vertically adjustablecoperating supports mounted on said frame to swing on substantiallyvertical axes; a depending hanger mounted to swing freely on each ofsaid supports; a blade frame on said hangers; a blade rotatably mountedon said blade frame; an oscillatory member mounted on said frame on asubstantially vertical axis; and a link connecting said oscillatorymember with said blade frame, substantially as described.

16. A grader comprising a frame; a pair of vertically adjustablecoperating supports mounted on said frame to swing on substantiallyvertical axes; a depending hanger 'mounted to swing freely on each ofsaid supports; a blade frame on said hangers; and a blade rotatablymounted on said blade frame, substantially as described.

17. A grader comprising a frame; a pair o-f vertically adjustablecoperating supports mounted on said frame to swing on substantiallyvertical aXes; a depending hanger mounted to swing freely on each ofsaid supports; a blade frame on said hangers; a blade rotatably mountedon said blade frame; an oscillatory memberV mounted on said frame on asubstantially vertical axis; and a llink connecting said oscillatorymember with said blade frame, substantially as described.

18. A grader comprising a frame; two blades in said frame; a rocker beamon said frame; a. bar pivoted to said frame parallel Y to said rockerbeam; a pivoted link connecting each side of said bar with thecorresponding side of said rocker beam; frames on said links; transversescrews in said link frame; blocks threaded on said screws; and aconnection between each of said blocks and one of said blades7substantially as described.

n testimony whereof we have signed our names to this specification inthe presence of the subscribing witness.

oRTUs E. Moers. osoAR E. THALEG.

l/Vitness B. G. RICHARDS.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

